<template>
  <view>
    <view class="login-container">
        <!-- 提示登录的图标 -->
        <uni-icons type="contact-filled" size="100" color="#AFAFAF"></uni-icons>
        <!-- 登录按钮 -->
        <button type="primary" class="btn-login" @click="getUserInfo">一键登录</button>
        <!-- 登录提示 -->
        <view class="tips-text">登录后尽享更多权益</view>
      </view>
  </view>
</template>

<script>
  import {mapState,mapMutations} from 'vuex'
  export default {
    name:"my-login",
    computed:{
      ...mapState('m_user',['redirectInfo'])
    },
    data() {
      return {
        
      };
    },
    methods:{
      ...mapMutations('m_user',['updateUserInfo','updateToken','updateRedirectInfo']),
      async getUserInfo(){
        const [err,succ] = await uni.getUserProfile({
          desc:'login'
        })
        if(err)return uni.$showMsg('您取消了授权')
        this.updateUserInfo(succ.userInfo)
         this.getToken(succ)
      },
      async getToken(info){
        const [err,succ] = await uni.login().catch(err=>err)
        if(err||succ.errMsg!=='login:ok')return uni.$showMsg('登录失败')
        const query={
          code: succ.code,
          encryptedData: info.encryptedData,
          iv: info.iv,
          rawData: info.rawData,
          signature: info.signature
        }
        //这里学习的接口有问题了
        // const res = await uni.$http.post('/api/public/v1/users/wxlogin', query)
        //自己模拟一个token 吧
        this.updateToken('branch:kisdkalossdfdsksoddklsfkd')
        
        //跳转回去
        this.navigateBack()
      },
      navigateBack(){
        // redirectInfo 不为 null，并且导航方式为 switchTab
          if (this.redirectInfo && this.redirectInfo.openType === 'switchTab') {
            // 调用小程序提供的 uni.switchTab() API 进行页面的导航
            uni.switchTab({
              // 要导航到的页面地址
              url: this.redirectInfo.from,
              // 导航成功之后，把 vuex 中的 redirectInfo 对象重置为 null
              complete: () => {
                this.updateRedirectInfo(null)
              }
            })
          }
      }
    }
  }
</script>

<style lang="scss">
.login-container {
  // 登录盒子的样式
  height: 750rpx;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background-color: #f8f8f8;
  position: relative;
  overflow: hidden;

  // 绘制登录盒子底部的半椭圆造型
  &::after {
    content: ' ';
    display: block;
    position: absolute;
    width: 100%;
    height: 40px;
    left: 0;
    bottom: 0;
    background-color: white;
    border-radius: 100%;
    transform: translateY(50%);
  }

  // 登录按钮的样式
  .btn-login {
    width: 90%;
    border-radius: 100px;
    margin: 15px 0;
    background-color: #c00000;
  }

  // 按钮下方提示消息的样式
  .tips-text {
    font-size: 12px;
    color: gray;
  }
}
</style>
